Lance Beaty of Phoenix Expo said the space “is scheduled and on track for delivery in September.”

On Wednesday, blueprints and diagrams were spread out on three tables around Beaty, in the middle of the vast space. He focused on the one in front of him and held a cell phone to his ear. Along the western walls were aluminum posts that make up the frame of the future offices. Duct work and wooden frames to be installed were on the floor.

On a beeping scissor lift, Chris Williams of Mansfield backed up from a stretch of metal girders he had just fastened into place, and then moved on to the next task.

Part of the repurposed construction has included clearing out the large area, and blocking up half of the former loading dock on the south side of the complex to create offices and large windows.

HMA estimates the center will offer a $21 million payroll, with the average position earning $35,000-$40,000 annually to handle billing, scheduling and insurance verification. The center will serve 14 hospitals in Arkansas, Oklahoma, Texas, Missouri and Washington. HMA Executive Director Shannon White stated in April that by early 2014 the center’s services will expand to include another 13 hospitals. And it would operate training centers for employees, offsite and in Fort Smith. HMA is based in Naples, Fla.

The 40-acre area at the corner of Phoenix and Towson avenues was “the first enclosed mall in Arkansas,” Beaty noted. The north end of it houses Sykes Enterprises, a “customer contact management” company that is based in Tampa, Fla.